Cyfyngwch eich canlyniadau yn ôl:
- Pob un
- Dolaucothi Estate (Wales), 5 canlyniadau
- Geological Survey of Great Britain., 3 canlyniadau
- Hills-Johnes, James, 1833-1919, 1 canlyniadau
- Johnes family, of Dolaucothi -- Archives., 1 canlyniadau
- Hills-Johnes family, of Dolaucothi -- Archives., 1 canlyniadau
- Lloyd-Johnes family, of Dolaucothi -- Archives., 1 canlyniadau
- Hills-Johnes family, of Dolaucothi, 1 canlyniadau
- Johnes family, of Dolaucothi, 1 canlyniadau
- Smyth, Warington W. Sir, (Warington Wilkinson), 1817-1890., 1 canlyniadau
- Geological Survey of Great Britain, 1 canlyniadau
